Gemstones are 8 types of Crystal Hollows and Crimson Isle resources. They are used as crafting ingredients, forging, reforging and can be added to certain items to boost certain stats.
Mechanics[]
Gemstones come in 8 varieties: Ruby,
Amber,
Sapphire,
Jade,
Amethyst,
Topaz,
Jasper, and
Opal.
Each Gemstone has 5 tiers, listed from lowest to highest: Rough, Flawed, Fine, Flawless and Perfect. Each tier is crafted from 80 of the previous, except Perfect which is created in The Forge.
Icon | Name | Obtaining | Requirement | Rough Gem Equivalent | ||||||||||
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Rough | Mining Treasure Chests |
1 | |||||||||||
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Flawed | ✧ Pristine activating while mining Treasure Chests Crystal Nucleus Loot Bundle |
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Gemstone Collection 2 | 80 | |||||||||
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Fine | Treasure Chests Crystal Nucleus Loot Bundle |
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Gemstone Collection 5 | 6,400 | |||||||||
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Flawless | Treasure Chests Crystal Nucleus Loot Bundle |
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Gemstone Collection 9 | 512,000 | |||||||||
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Perfect | Forged with 5 Flawless Gemstones and their respective Crystal for 20h | Gemstone Collection 10 HotM 5 |
2,560,000 |
Obtaining[]
Mining[]

Jade Gemstone Ore
Gemstones can be mined in Crystal Hollows from their ores. Their ores generate in differently sized veins, in set locations within the Crystal Hollows and within random structures. Veins regenerate after some time, except when destroyed using Bob-omb.
Mining Gemstones will always give Rough tier of the item. ✧ Pristine grants a chance to drop a Flawed gemstone for each Rough gemstone harvested.
Icon | Name | Location | Ore Appearance | Ⓟ BP |
---|---|---|---|---|
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Ruby | Anywhere in Crystal Hollows | ![]() ![]() |
6 |
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Amethyst | Jungle | ![]() ![]() |
7 |
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Jade | Mithril Deposits | ![]() ![]() |
7 |
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Sapphire | Precursor Remnants | ![]() ![]() |
7 |
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Amber | Goblin Holdout | ![]() ![]() |
7 |
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Topaz | Magma Fields | ![]() ![]() |
8 |
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Jasper | Fairy Grotto | ![]() ![]() |
9 |
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Opal | Crimson Isle | ![]() ![]() |
7 |
Ore | Base Yield | Ore | Base Yield |
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Treasure Chests[]
Gemstones of Rough, Flawed and Fine qualities can be found in treasure chests. A treasure chest can spawn in random structures or randomly when mining in the Crystal Hollows. The possible gemstone type(s) depends on the location of its appearance.
- For loots and chances related to Treasure Chests in different locations, see Crystal Hollows § Treasure and Loot Chests.
Mobs[]
Certain Crystal Hollows mobs drop Gemstones when killed.
Name | Drops |
---|---|
Yog | ![]() |
Grunt | ![]() ![]() |
Executive Viper | |
Executive Wendy | |
Executive Sebastian | |
Boss Corleone | ![]() ![]() |
Thyst | ![]() |
Automaton [Lv100] | ![]() |
Automaton [Lv150] | ![]() |
Butterfly | ![]() |
The Bal boss has a chance to drop 1x Flawed Ruby Gemstone or
1x Flawed Topaz Gemstone when hurt.
Crystal Nucleus[]
Crystal Nucleus loot bundle drops 1 Fine Gemstone of each type when completed. It can also drop additional Flawed, Fine and Flawless Gemstones of any kind.
Other[]
Odawa sells
1x Rough Amethyst Gemstone for
1x Sludge Juice.
Using the Metal Detector in the ⏣ Mines of Divan can yield random amounts of Rough, Flawed, and Fine Gemstones of any kind.
Throwing the Eternal Flame Ring into the correct lava pool yields
64x Rough Topaz Gemstone.
Collection[]
All 8 types of Gemstones from any source (except metal detecting in Divan Mines) increase the Gemstone Collection.
Gemstone Collection | ||||||||
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LVL | Required | Reward |
---|---|---|
I | 100 | Small Gemstone Sack Recipe |
II | 250 | Flawed Gemstone Recipe |
III | 1,000 | Medium Gemstone Sack Recipe |
IV | 2,500 | ![]() |
V | 5,000 | Fine Gemstone Recipe |
VI | 25,000 | ![]() |
VII | 100,000 | ![]() |
VIII | 250,000 | ![]() |
IX | 500,000 | Flawless Gemstone Recipe |
X | 1,000,000 | ![]() Perfect Gemstone Recipe |
XI | 2,000,000 | ![]() |
Usage[]
Gemstones are used in forging Amber Material,
Amber-polished Drill Engine,
Blue Cheese Goblin Omelette,
Gemstone Mixture,
Hot Stuff,
Jasper Drill Model X,
Ruby Drill Model TX-15,
Ruby-polished Drill Engine,
Sapphire-polished Drill Engine,
Spicy Goblin Omelette,
Sunny Side Goblin Omelette,
Titanium Drill DR-X655,
Topaz Drill KGR-12.
Crafting Recipe[]
Name | Requirements | Ingredients | Crafting recipe | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Small Gemstone Sack | Gemstone I
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Flawed Gemstone | Gemstone II
|
80x All Rough Gemstone |
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Medium Gemstone Sack | Gemstone III
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Talisman of Power | Gemstone IV
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Fine Gemstone | Gemstone V
|
80x All Flawed Gemstone |
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